Imposing time limits on tests can serve a range of important functions. Time limits are essential, for example, if speed of performance is an integral component of what is being measured, as would be the case when testing such skills as how quickly someone can type. Limiting testing time also helps contain expenses associated with test…

The General Computer Adaptive Test (CAT) of the Graduate Record Examinations (GRE) includes three operational sections that are separately timed and scored. A "no score" is reported if the examinee answers fewer than 80% of the items or if the examinee does not answer all of the items and leaves the section before time expires. The 80%…

In recent years, a controversy has arisen about the advisability of allowing examinees to review their test items and possibly change answers. Arguments for and against allowing item review are discussed, and issues that a test designer should consider when designing a Computerized Adaptive Test (CAT) are identified. Most CATs do not allow…

This report updates and summarizes what is known from research on the effects of test accommodations for students with disabilities and also provides direction to the design of critically needed future research on accommodations. A review was conducted of 46 empirical research studies on accommodations published from 1999 through 2001. The…